Study the following bar graph that shows the number of students enrolled for different courses in institutes A and B during 5 years, and answer the question that follows.

What is the ratio of the total numbers of students enrolled in A during 2017 and 2018 to that of students enrolled in B during 2014 and 2015?

Number of Student enrolled in A during 2017 = 250

Number of students enrolled in A during 2018 = 260

Total students of students enrolled in A during 2017 and 2018 together = 250 + 260 = 510

Number of students enrolled in B during 2014 = 225

Number of students enrolled in B during 2015 = 360 

Total number of students enrolled in B during 2014 and 2015 together = 225 + 360 = 585

Required ratio = 510 : 585 = 34 : 39

Hence, Option A is correct.